Keith Hunter’s statement gives, as the third reason to believe in Anthropogenic Global Warming, this piece of evidence:
It is simple physics that these extra gas concentrations will trap an increased amount of outgoing solar radiation reflected off the Earth’s surface, of the order of 1.5 watts per square metre of the Earth’s surface.
Simple physics? If it is “simple physics” it should be able to be derived and written up in one page or at most a few pages of equations and calculations. How about it, Professor?
In reality, the climate systems are vast, complex and we understand them poorly. If we understood them well, people like Keith Hunter would describe them and not take refuge in weasel words that obscure the difficulties of understanding.
It was a silly mistake to mention “outgoing solar radiation” and damage his credibility. I guess that was the risk he ran of commenting outside his expertise.
The physics of the greenhouse effect might be considered simple, but Hunter here ascribes causation for warming to humanity’s increased emissions of carbon dioxide.
Which is a very different thing.
Am I wrong?